摘要:
A process for desulphurizing hydrocarbons includes passing a mixture of hydrocarbon and hydrogen over a hydrodesulphurization catalyst to convert organosulphur compounds present in the hydrocarbon to hydrogen sulphide, passing the resulting mixture over a hydrogen sulphide sorbent including zinc oxide to reduce the hydrogen sulphide content of the mixture, and passing the hydrogen sulphide-depleted mixture over a further desulphurization material. The further desulphurization material includes one or more nickel compounds, a zinc oxide support material, and optionally one or more promoter metal compounds of iron, cobalt, copper and precious metals. The desulphurization material has a nickel content in the range 0.3 to 20% by weight and a promoter metal compound content in the range 0 to 10% by weight.
摘要:
A process for desulphurising hydrocarbons includes the steps of (i) passing a mixture of hydrocarbon and hydrogen over a hydrodesulphurisation catalyst to convert organosulphur compounds present in the hydrocarbon to hydrogen sulphide, (ii) passing the resulting mixture over a hydrogen sulphide sorbent including zinc oxide to reduce the hydrogen sulphide content of the mixture and (iii) passing the hydrogen sulphide-depleted mixture over a further desulphurisation material, where the further desulphurisation material includes one or more nickel compounds, a zinc oxide support material, and optionally one or more promoter metal compounds selected from one or more compounds of iron, cobalt, copper and precious metals, the desulphurisation material having a nickel content in the range 0.3 to 20% by weight and a promoter metal content in the range 0 to 10% by weight.
摘要:
A catalytic converter includes: a three-dimensional structural support having a plurality of cells partitioned by porous cell walls, in which a pore diameter of the cell walls is 10 μm to 50 μm and porosity of the cell walls is 40 vol % or more; and a catalyst-coated layer containing a catalyst component. The catalyst-coated layer is coated on surfaces of the cell walls of the three-dimensional structural support. 50 mass % or more of a total supported amount of the catalyst component on the three-dimensional structural support is present in a region from the surfaces of the cell walls of the three-dimensional structural support to surfaces of the catalyst-coated layer.
摘要:
A photocatalytic reactor is disclosed herein, which includes a rotatable light guide plate and a light source. The light guide plate is coated with a photocatalyst film on a surface thereof. A light beam emitted from the light source can be coupled into and propagate inside the light guide plate to activate the photocatalysis of the photocatalyst film. Additionally, the rotation of the light guide plate further expedites the photocatalysis so as to enhance the reaction efficiency of the photocatalytic reactor.
摘要:
An oxidation catalyst system is formed by particles of an oxidation catalyst dispersed in a porous sol-gel binder. The oxidation catalyst system can be applied by brush or spray painting while the sol-gel binder is in its sol state.
摘要:
A process for the removal of contaminants from a gas stream is disclosed. A gas stream is contacted with a chlorine-containing compound to form a mixed gas stream. The mixed gas stream is then contacted with a sorbent in a sorption zone to produce a product gas stream and a sulfur laden sorbent, wherein the sorbent comprises zinc and a promoter metal.
摘要:
A honeycomb structure includes a honeycomb structure includes a honeycomb unit. The honeycomb unit has thermal conductivity equal to or greater than about 0.15 W/m/K but less than or equal to about 0.60 W/m/K and has Young's modulus equal to or greater than about 1.5 MPa but less than or equal to about 7.0 Mpa. The honeycomb unit includes zeolite, an inorganic binder, and partition walls. The partition walls extend along a longitudinal direction of the honeycomb unit to define plural through holes.
摘要翻译:蜂窝结构体包括具有蜂窝单元的蜂窝结构体。 蜂窝单元具有等于或大于约0.15W / m / K但小于或等于约0.60W / m / K的热导率,并且杨氏模量等于或大于约1.5MPa但小于或等于约 7.0 Mpa。 蜂窝单元包括沸石,无机粘合剂和分隔壁。 分隔壁沿着蜂窝单元的纵向方向延伸以限定多个通孔。
摘要:
A catalyst system comprising a catalyst and a reductant is disclosed. The catalyst comprises a metal oxide catalyst support, a catalytic metal oxide, and a promoting metal. The catalytic metal oxide comprises gallium oxide, indium oxide or a combination of the two. The promoting metal comprises at least one of silver, cobalt, vanadium, molybdenum, tungsten, zinc, tin and bismuth. The catalyst comprises about 5 to about 31 mol % catalytic metal oxide and about 0.5 to about 9 mol % promoting metal. The reductant comprises a fluid hydrocarbon having at least 4 carbon atoms. Also disclosed is a process for reducing NOx to N2 using the disclosed catalyst system by mixing NOx with a reductant and passing the mixture through a catalyst of the disclosed catalyst system.
摘要翻译:公开了一种包含催化剂和还原剂的催化剂体系。 催化剂包括金属氧化物催化剂载体,催化金属氧化物和促进金属。 催化金属氧化物包括氧化镓,氧化铟或两者的组合。 促进金属包括银,钴,钒,钼,钨,锌,锡和铋中的至少一种。 催化剂包含约5至约31摩尔%的催化金属氧化物和约0.5至约9摩尔%的促进金属。 还原剂包括具有至少4个碳原子的流体烃。 还公开了使用公开的催化剂体系通过将NO x x与还原剂混合并使混合物通过的方法将NO 2 x 2还原为N 2 所公开的催化剂体系的催化剂。
摘要:
A method for decomposing nitrous oxide comprises contacting a catalyst for decomposing nitrous oxide with a nitrous oxide-containing gas at 200 to 600° C. The catalyst comprises a support and supported thereon at least one noble metal selected from rhodium, ruthenium and palladium. The support comprises silica or silica alumina. At least one metal selected from zinc, iron and manganese can be supported on the support.
摘要:
A catalyst system comprising a catalyst and a reductant is disclosed. The catalyst comprises a metal oxide catalyst support, a catalytic metal oxide, and a promoting metal. The catalytic metal oxide comprises gallium oxide, indium oxide or a combination of the two. The promoting metal comprises at least one of silver, cobalt, vanadium, molybdenum, tungsten, zinc, tin and bismuth. The catalyst comprises about 5 to about 31 mol % catalytic metal oxide and about 0.5 to about 9 mol % promoting metal. The reductant comprises a fluid hydrocarbon having at least 4 carbon atoms. Also disclosed is a process for reducing NOx to N2 using the disclosed catalyst system by mixing NOx with a reductant and passing the mixture through a catalyst of the disclosed catalyst system.
摘要翻译:公开了一种包含催化剂和还原剂的催化剂体系。 催化剂包括金属氧化物催化剂载体,催化金属氧化物和促进金属。 催化金属氧化物包括氧化镓,氧化铟或两者的组合。 促进金属包括银,钴,钒,钼,钨,锌,锡和铋中的至少一种。 催化剂包含约5至约31摩尔%的催化金属氧化物和约0.5至约9摩尔%的促进金属。 还原剂包括具有至少4个碳原子的流体烃。 还公开了使用公开的催化剂体系通过将NO x x与还原剂混合并使混合物通过的方法将NO 2 x 2还原为N 2 所公开的催化剂体系的催化剂。